Answer: B) Placenta
Explanation:
The placenta is a temporary organ that develops during pregnancy and serves as a vital interface between the maternal and fetal blood systems. It forms in the uterus and allows for the exchange of nutrients, oxygen, and waste products between the mother and the developing fetus.
The placenta contains blood vessels from both the mother and the fetus, but the blood itself doesn't mix. Instead, the exchange of substances occurs through a semipermeable barrier that allows essential substances to pass from the mother's blood to the fetal blood, providing the necessary nutrients and oxygen for the baby's growth and development. At the same time, waste products from the fetus pass through the placenta to be eliminated by the mother's body.
In summary, the placenta plays a crucial role in facilitating the transfer of substances between the maternal and fetal blood systems, ensuring the well-being of the developing fetus during pregnancy
